[sha_ggy13]

what species of clown are you talking about adding? I assume when you say a black clown, you mean a black and white ocellaris? If the new clowns are ocellaris or even percula, it "could" work but like posted above, all 3 would probably not hang out together.

 

[sha_ggy13]

Are the 2 orange clowns already a mated pair? If so, you would be better off to sell them as a pair to LFS or private buyer and buy yourself a juvenile ocellaris to pair up with the black one. If you have had the black one for a while, chance are she is bigger and already turning female. If the new clowns are not a pair yet, still juvenile, then take the size into consideration. The larger of the 2 new ones is most likely the female depending on age and putting that one into the tank with an already female could lead to a lot of fighting and the one in the tank now might kill the new one. Taking the smaller of the 2 new ones and putting it in the tank should cause less issues. So i have a few more questions?

How old and how big is the current black and white ocellaris?
How old and how big are the 2 new clowns?

 

[sha_ggy13]

Ok, you should be good to go. Your new black and white one is still a juvenile and chances are the new one you get from your friend will be either a juvenile as well or bigger. As long as you don't mind the chance of the orange one being the female (getting larger) and the black and white becoming the male.